PMID- 23352830 OWN - NLM STAT- MEDLINE DCOM- 20130819 LR - 20191210 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1292 DP - 2013 May 31 TI - Reversed-phase ion-pair ultra-high-performance-liquid chromatography-mass spectrometry for fingerprinting low-molecular-weight heparins. PG - 201-10 LID - S0021-9673(13)00066-6 [pii] LID - 10.1016/j.chroma.2013.01.011 [doi] AB - Heparin is a complex mixture of sulfated linear carbohydrate polymers. It is widely used as an antithrombotic drug, though it has been shown to have a myriad of additional biological activities. Heparin is often partially depolymerized in order to decrease the average molecular weight, as it has been shown that low molecular weight heparins (LMWH) possess more desirable pharmacokinetic and pharmacodynamic properties than unfractionated heparin (UFH). Due to the prevalence of LMWHs in the market and the emerging availability of generic LMWH products, it is important that analytical methods be developed to ensure the drug quality. This work explores the use of tributylamine (TrBA), dibutylamine (DBA), and pentylamine (PTA) as ion-pairing reagents in conjunction with acetonitrile and methanol modified mobile phases for reversed-phase ion-pairing ultraperformance liquid chromatography coupled to mass spectrometry (RPIP-UPLC-MS) for fingerprint analysis of LMWH preparations. RPIP-UPLC-MS fingerprints are presented and compared for tinzaparinand enoxaparin. CI - Copyright (c) 2013 Elsevier B.V. All rights reserved. FAU - Langeslay, Derek J AU - Langeslay DJ AD - Department of Chemistry, University of California - Riverside, Riverside, CA, USA. FAU - Urso, Elena AU - Urso E FAU - Gardini, Cristina AU - Gardini C FAU - Naggi, Annamaria AU - Naggi A FAU - Torri, Giangiacomo AU - Torri G FAU - Larive, Cynthia K AU - Larive CK LA - eng GR - CA138535/CA/NCI NIH HHS/United States PT - Evaluation Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20130110 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Anticoagulants) RN - 0 (Butylamines) RN - 0 (Enoxaparin) RN - 0 (Heparin, Low-Molecular-Weight) RN - 2194M2LA21 (dibutylamine) RN - 7UQ7X4Y489 (Tinzaparin) RN - C3TZB2W0R7 (tributylamine) SB - IM MH - Anticoagulants/*chemistry/isolation & purification MH - Butylamines/chemistry MH - Chromatography, High Pressure Liquid/methods MH - Chromatography, Reverse-Phase/*methods MH - Enoxaparin/*chemistry/isolation & purification MH - Heparin, Low-Molecular-Weight/*chemistry/isolation & purification MH - Mass Spectrometry/*methods MH - Sensitivity and Specificity MH - Tinzaparin EDAT- 2013/01/29 06:00 MHDA- 2013/08/21 06:00 CRDT- 2013/01/29 06:00 PHST- 2012/07/26 00:00 [received] PHST- 2012/12/13 00:00 [revised] PHST- 2013/01/04 00:00 [accepted] PHST- 2013/01/29 06:00 [entrez] PHST- 2013/01/29 06:00 [pubmed] PHST- 2013/08/21 06:00 [medline] AID - S0021-9673(13)00066-6 [pii] AID - 10.1016/j.chroma.2013.01.011 [doi] PST - ppublish SO - J Chromatogr A. 2013 May 31;1292:201-10. doi: 10.1016/j.chroma.2013.01.011. Epub 2013 Jan 10.